First record and spreading of the invasive mosquito Aedes japonicus japonicus (Theobald, 1901) in Croatia

• Published in: Medical and veterinary entomology Vol. 33; no. 1; pp. 171 - 176
• Main Authors: Klobučar, A., Lipovac, I., Žagar, N., Mitrović‐Hamzić, S., Tešić, V., Vilibić‐Čavlek, T., Merdić, E.
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Publishing Ltd 01.03.2019; Wiley Subscription Services, Inc
• Subjects: Aedes j. japonicus; Animal populations; Climatic conditions; Croatia; Entomology; first record; mosquito spreading; Mosquitoes; Nonnative species; surveillance; Croatia; Aedes j. japonicus; mosquito spreading; surveillance; first record; Croatia
• ISSN: 0269-283X; 1365-2915
• DOI: 10.1111/mve.12337

Aedes (Hulecoeteomyia) japonicus japonicus (Theobald, 1901) has recently established across North America and Central Europe. A 3‐year survey was conducted in northwestern Croatian regions from 2013 to 2015 using mosquito ovitraps at possible points of entry and house yards, occasionally complemented by larval collections from cemetery vases. In the first year, the survey investigated the county bordering Slovenia, where the first detection of Ae. j. japonicus had taken place on 28 August 2013. During the next 2 years, Ae. j. japonicus was detected in this area from early May until late October. In 2015, several counties further to the east were included in the survey, leading to the detection of Ae. j. japonicus approximately 100 km eastward from the initially surveyed region. Given a moderate continental climate and homogeneous climatic conditions in this part of Europe, the eastward spread of Ae. j. japonicus can be expected to continue.